Wheel-hub



(No Model.)

E. C. ROBERTS. WHEEL HUB.

110.401.213. P11-.embed Apr. 9, 1889..

y OZ' r 1%@ n Farms. Pmwumgnpmf. wmingm uc.

UNITED STATES EDVARD C. ROBERTS, OF ABINGDON, VIRGINIA.

SPECIFICATION forming part of Letters Patent No. 401,213, dated April 9, 1889.

Application filed July 28, 1888. Serial No. 281,336. (No model.)

To cz/ZZ whom it may concern.-

Be it known that I, EDWARD C. ROBERTS, a citizen ot the United States, and a resident of Abingdon, in the county of Washington and State of Virginia, have invented certain new and useful Improvements in NVheel-Hubs; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification.

Figure l of the drawings is a representation of this invention and is a vertical section. Fig. 2 is a det-ail. Fig. 3 is also a detail.

The invention relates to improvements in vehicle-hubs; and it consists in the construction and novel combination of parts, as hereinatter set forth.

The object of the invention is to provide a hub so arranged that the spokes of the Wheel may be easily placed therein Without driving and securely clamped, and also, as the ends of the spokes within the hub lie against each other, a greater than the ordinary number of spokes may be employed, which materially strengthens the rim.

Referring to the drawings, A designates the axle-spindle, having` the reduced threaded outer end for the nut a. and the annular shoulder a on its inner end.

B is the box, which turns on the spindle and carries the hub and wheel.

The box B is provided with threaded ends h to engage the interiorly-threaded portion of the clamping-nuts C C. The clamping-nuts C C have the outer surface of the inwardlyprojecting portions h transversely beveled or inclined from the shoulders c to fit closely within the ared openings c of the annular bearingrings D. The outer end of the clamping-nut C is internally threaded to engage the thread of the cap E, which has an angular seat for a wrench, and is designed to exclude dirt and sand from the interior of the hub. The clamping-nuts are also provided with an angular wrench-seat, so that the spokes may be easily tightened by forcing the rings D against them.

Each bearing-ring D has the annular' recess d, which forms a chamber for lubricating-oil. The openings d through the shell of the rings are provided with a thread to engage screw-stoppers e, and are designed for convenience in filling the oil-chambers. The openings e through the box-shell allow the oil to enter and lubricate the spindle.

E designates the spokes, having their lower ends inserted between the bearing-rings D and placed so as to lie closely together.

F represents rubber washers seated in the recess f, formed in the bearing-rings by the annular iiange f. should be normally somewhat thicker than the depth of the recess f, so that when the bearingrings are forced inwardly by the clamping -screws the rubber will be compressed, thus insuring a strong pressure on the spokes.

The clamping-nut C projects rearwardly over the shoulder a of the spindle and forms a sand band.

Having described my in vention,what I claim 1s- 1. In a vehicle-hub, the combination ot the box having the threaded ends, the clampingnuts having the transversely-beveled portion, the bearing-rings, and the washer, substantially as specied.

2. In a vehicle-hub, the combination, with the box threaded at its ends, of the clampingnut C,having the beveled portion, the shoulder C, and the rearwardly-projecting port-ion, the nut C, having the beveled portion, the annular shoulder, and the threaded outer end, the cap E, the bearing-rings having the oilchamber, the dared openingv and the fiange, and the rubber washers, substantialhT as specified.

3. A wheelhub consisting of the box vthreaded at its ends, the clamping-nuts having the threaded andbeveled inwardly-proj ecting portion., the cap E, engaging a threaded portion of the nut C, the bearing-rings having the annular recess d, the ared opening and the flange, and the rubber washer, substantially as specified.

In testimony whereof I atlix my signature in presence of two witnesses.

EDW C. ROBERTS. "Witnesses:

JOHN F. Coon, JNO. Hunrnnnvs.

The said rubber washers IOO 

